How to compare weight prices
Weights are sold by the piece, the pair, the set, and in kilograms or pounds, and every seller lists them differently. The only number that lines all of that up is price per pound: the listed price divided by the total pounds in the listing. This page explains how we compute it, what it leaves out, and what a normal range looks like in each category we track.
How price per pound is computed
Each row in our tables is one listing as the seller sells it. A single kettlebell counts its own weight. A pair of plates counts both plates. A set counts the whole set. Kilogram listings are converted at 2.2046 lb per kg. Adjustable dumbbells and kettlebells count at their maximum setting and are grouped on their own, because a 5–50 lb adjustable is a different purchase from a 50 lb fixed dumbbell.
Price is the seller's listed price at the time we read it, before tax and shipping, and each row shows that date. Sale prices count as listed prices; if a sale ends, the next read picks up the change.
What price per pound leaves out
Shipping. A 300 lb plate set ships on a pallet, and a seller that bakes freight into the price will look more expensive per pound than one that adds it at checkout. The practical fix is to compare listed price per pound first, shortlist, then put the shortlist in carts. Sellers with a flat rate or a free-shipping threshold on heavy goods usually win once the box is over about 50 lb; our retailer comparison notes each seller's shipping rule and the date we checked it.
Tolerance and finish. Cast iron plates are commonly sold at ±2–3% of stated weight; calibrated plates are held to a fraction of a percent and priced accordingly. Enamel, powder coat, and e-coat on a kettlebell are a handle-feel decision as much as a rust decision. None of this shows up in the number.
Warranty and returns. Returning 200 lb of iron costs real money, and policies range from free returns to a restocking fee plus return freight. The retailer comparison lists what we could verify for each seller.
Typical price per pound by category
Figures from our current tables, read 2026-09-17. Use them as a sanity check: a listing near the minimum is a strong price; one well above the median needs a reason (calibration, a brand you want, a sale that just ended).
| Category | Listings | Lowest $/lb | Median $/lb | Highest $/lb |
|---|---|---|---|---|
| Bumper plates | 18 | $1.84 | $2.43 | $3.90 |
| Dumbbells | 15 | $1.64 | $2.25 | $4.96 |
| Iron plates | 10 | $1.89 | $2.96 | $5.55 |
| Kettlebells | 19 | $1.81 | $2.41 | $3.63 |
| Ruck plates | 9 | $2.50 | $3.30 | $5.90 |
The high end in each category is usually adjustable or competition equipment, which is why we break those out in the category tables.
When paying more per pound makes sense
- Calibrated or competition plates, if you compete or test lifts against a standard.
- Competition kettlebells, if you train the Olympic-style kettlebell lifts and want the same handle size at every weight.
- Adjustables, if floor space is the constraint. One adjustable pair at $3–4/lb can still be cheaper than the rack of fixed dumbbells it replaces.
- A seller with free heavy-item shipping and easy returns, when the per-pound gap is a few cents.
Questions we get
- Why price per pound and not price?
- Two 45 lb plates at $120 and a 35 lb pair at $100 look close on price. Per pound the 45s are $1.33 and the 35s are $1.43, so the heavier pair is the better buy of iron. Price per pound puts every listing on the same scale no matter how it is packaged.
- Does shipping count?
- Not in our tables. Shipping depends on your address and changes at checkout, so we show the listed price and note which sellers ship free above a threshold. On anything over 50 lb, shipping can add more than the difference between two listings, so check it before deciding.
- How are pairs and sets counted?
- A pair of 45 lb plates is 90 lb. A 300 lb set is 300 lb. Price per pound divides the listed price by the total pounds in the box, so a pair and a single are directly comparable.
- Why are adjustable dumbbells so much more per pound?
- An adjustable set replaces a rack of fixed dumbbells, so the price covers the mechanism, and the weight counted is the maximum setting. We list adjustables in their own group and compare them only against other adjustables.
- Is the cheapest per pound always the right buy?
- No. Calibrated and competition plates cost more per pound because they are machined to a tight weight tolerance, and a kettlebell with a smooth handle and a flat base is worth paying for if it is the one you will use every day. Price per pound tells you what iron costs; it does not tell you whether the iron is good.
The live tables: kettlebells, bumper plates, iron plates, dumbbells, ruck plates. Method and funding are on the about page.